DTC P0171 “System Too Lean” – 2004-2006 Mitsubishi Lancer

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SUBJECT:
DTC P0171 SYSTEM TOO LEAN
No: TSB-06-13-009
DATE: April, 2006
MODEL: 2004-06 Lancer 2.0L

 

PURPOSE

The MIL may come on and DTC P0171 “System Too Lean” may set in the PCM. This condition may be due to vacuum leakage around a fuel injector insulator. To eliminate this condition, install a new, improved O-ring (listed in the PARTS INFORMATION section of this bulletin) on all fuel injectors. When installing the injectors, it is critical that there is no air leakage between the fuel injector and the insulator.

 

AFFECTED VEHICLES

2004-2006 Lancer models equipped with 2.0L engine

 

PROCEDURE

O-ring and insulator Replace the O-ring and insulator on all fuel injectors, using the parts listed below.
no clearance between the insulator and the injector Verify that there is no clearance between the insulator and the injector. Install the injectors on the fuel rail.

After the fuel rail is installed on the engine, be sure to press the injectors firmly down against the insulators.

 

PARTS INFORMATION

Use the Genuine Mitsubishi Part listed below:

Description Part Number
O-ring 1465A188eBay
Insulator MD087060 

 

WARRANTY INFORMATION

Fuel Injector O-Ring & Insulator Replacement
Nature Code: 16D Cause Code: 450
Labor Operation No. 13311095 Time Allowance: 0.6 hr.
Warranty Coverage: Emissions warranty 8 years / 80,000 miles
Special Warranty Information: Normal warranty procedures apply.

 


 

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Last update on 2024-06-05 / Affiliate links / Images from Amazon Product Advertising API

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